Malicious PDF — malware analysis report

Static analysis result for SHA-256 2b1d6be8d37b91d7…

MALICIOUS

PDF

35.1 KB Created: 2021-07-07 04:26:29 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2026-06-04
MD5: f35114c1b2417c63cd7ebcafc967c3c3 SHA-1: 925e2e4c8d80b21612d11771dd9b967ac924c150 SHA-256: 2b1d6be8d37b91d70db5a23ae69114316add39a67d612e1a8a7e64faa7809a0d
160 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF document contains multiple links to known malicious redirectors and lures users with promises of game hacks. The primary malicious URL identified is http://netcdn.tw/app/479516143/minecraft-servers-that-allow-hacks-game-hack, which is flagged as a malicious redirector. The document's content and embedded links strongly suggest a phishing or malware distribution attempt, likely initiated via spearphishing.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9980

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector critical PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean. CRITICAL on its own: the /app/<id>/<slug>-game-hack path shape is unambiguous scam infra, and the host rotates so a host-list match can't be relied on.
  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://netcdn.tw/app/479516143/minecraft-servers-that-allow-hacks-game-hack In PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-eclipsis-hack_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/play-minecraft-pocket-edition-for-free_GM479516143.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/how-to-get-the-diamond-block-in-roblox-for-free_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/mine-minecraft-games-for-free_GM479516143.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/tiktok-fans-free_GM835599320.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-free-doge-hat_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/case-clicker-hack-roblox-2021_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/free-robux-no-human-verification-or-survey-or-download-2021_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/get-free-spins-coin-master_GM406889139.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/how-to-get-free-robux-in-2021_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/guuuddinfo-online-hack-for-robux_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/console-roblox-hack_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/free-texture-packs-for-minecraft-pe_GM479516143.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/www-hacker-de-roblox_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/free-robux-bloxburg_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-robux-hack-no-human-verification-or-survey-2021_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-hacks-board_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/minecraft-windows-10-free-with-java_GM479516143.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-jailbreak-games-for-free_GM431946152.pdfIn PDF document text
    • https://lms.mtsn3trenggalek.sch.id/__statics/gudangsoal/files/roblox-jailbreak-noclip-hack-download-in-description-patched_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off00003612.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x3612 21672 bytes
SHA-256: 49cf3128340bc3ba3968dcd0987dde37f1a0f148a4de5d99019b4f9f51b1b7dc
font_01_sfnt_off00006599.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x6599 18688 bytes
SHA-256: 52b008c1dee13834d2ec83d98dfe79a40f83e68d5b96d4fb2c84ac72eafae7a4

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